Where did you get 1669.4 pounds from? A stock 1.8 in the Elise is 1805 by my calc (1600 + 1.8*(200 + 25) - 200 (assuming <= 275 tires)) = 1805.
Crap. Clerical error. Read the wrong line in the rule book when I went back to calculate. So an Elise is NOT FWD?
Rear weght bias 25 * 1.796 = 44.9
Tiny tires is -200
So I am still way OK.
So if I had big tires and a supercharger, I'd have to add 370 pounds of ballast to get to 2319.1? That's not the car I want to have. One of the main reasons I didn't keep my Europa was that I didn't want to bolt hundreds pounds to it for XP. Lightness was most of that the Europa had going for it.
Super Street Modified Class (SSM)
All two-seat cars not excluded below.
All SM eligible sedans/coupes excluded from SM.
All SM eligible vehicles.
Lotus (all except Elise, Exige, & Esprit)
Vehicles not meeting minimum weights
Minimum Weight Calculations (without driver):
FWD: 1350 lbs. + 125 lbs. per liter
RWD: 1600 lbs. + 200 lbs. per liter
AWD: 1600 lbs. + 300 lbs. per liter
Supercharged or Turbocharged SSM engines: Add 1.4L to the actual
Rear wheel weight greater than 51%: +25 lbs. per liter
Tire width 275 mm or less (all): -200 lbs.
Regardless of the weight formulas above, no car will be required to
weigh more than 2900 lbs.
Phil Ethier Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
2004 Suburban 8.1, Sport Red
2005 Lotus Elise, Bordeaux Red Pearl
2017 Ford Fusion (wife had to stop driving manual due to shoulder problem), Oxford White
2006 Gulf Stream Conquest Super C on Chev Kodiak chassis